.canvas{
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.out-box{
    border: 1px solid transparent;
    border-radius: 3px;
    padding: 12px;
    margin: 5px 12px;

    &:hover{
        border-color: skyblue ;
    }
}

.stopEvent{
    pointer-events: none; // 屏蔽鼠标行为
}